Sealable padlock



- July 19, 1932. H VAN LEER I 1,867,689

SEALABLE PADLOCK Filed Aug. 28, 1929 W416, Elm s um.

ATTORNEYS Patented July 19, 1932 STATES Lamas FLORIS H. VAN. LEE-R, F GLENDALE, CALIFORNIA, ASSIGNQR .TO B. VAN LEER, OI

- AMSTERDAM, NETHERLANDS SEALABLE PADLOCK Application filed August 28, 1929. Serial No. 388,915.

This invention relates to a form of padlock which can be sealed so that it cannot be opened until the seal is broken even if one has a key, and which likewise can be sealed so that it cannot be moved into the position where the key is needed unless the seal is broken. Such a lock has many different uses, among'the most important of which is its use on supply tanks for lubricating oils or gasoline Where m the company which furnishes. the brand of material that the tank is supposed to contain wishes to be sure that there is no substitution or adulteration. Insome such cases it is necessary both to lock and seal the tank, whereas, in other cases the seal only is needed and the necessity of using a key would involve only a waste of time. By the present invention, I am able to meet bothrequirements.

In the accompanying drawing, Fig. 1 is a front view of an example of a lock embodying my invention; Fig. 2 is a side view; Fig.

3 is a back view; Fig. 4 is a section on line 4:4

of Fig. 1, and Fig. 5 is a view corresponding to Fig. 2 but with the parts in different position.

Referring to the drawing, 10 represents the body of the lock which is understood to contain the usual tumblers or locking mechanism to be operated by a key 12.- The shackle 16 has the leg 18 attached in the body 10 in such a way as to permit both limited rotation and longitudinal movement of the shackle. When the lock is open, free leg 20 is normally clear of body 10 so that to lock the device the shackle as is pivoted until leg 20 is over the central line of the body when the shackle is pushed in until it catches. An appropriate opening is provided in the body 10 to receive leg 20 of shackle 16. This is a type of padlock in 4a common use.

In accordance with my invention, a semi- V will strike the flange and stop exactly at the I i right point for the shackleto be pushed in to close the lock. In this way the flange 22 serves to simplify the operation of closing the padlocln o In the flange 22 is formed a slot/24 and a slot 26 of the same size is formed in leg 20 of the shackle. These two slots are sopositioned that they are in alignment when the lock is closed. A seal member 28 is provided which will just pass freely through these slots but when in position will prevent the shackle from sliding out of the body far enough to swing around on its pivot. Usual means are provided for fastening together the ends of the seal. By this arrangement the lock may readily be sealed so that-it cannot be opened without breaking the sealing member. a

If it is desired to seal the lock in unlocked position, the seal 28 is passed through slot 24: in flange 22, and due to the fact that the seal is a little narrower than the slot it can be slightly tilted so that it can also be passed through slot 26 as shown inFig. 5; thereafter the ends of sealing member 28 are bent around and attached to each other. This seals together the ends of the shackle, but with the sealing member 28 in this position, it is impossible to swing the shackle into locking position, for this would demand that leg 20 and flange 22 be brought together with their slots out of alignment, which cannot be done because of the presence of sealing member 28.

The flange 22 both serves as a guide to assist in closing the lock and it, together with slots 24 and 26, provide means so that seal 28 can be used either to hold the shackle in locked or unlocked position.

What I claim is: A padlock of the type having a pivoting and sliding shackle and a socket for the free end of the shackle, a flange on the body of I the lock adjacent such socket, substantially vertical slots through. the free end of the shackle and such flange which substantially register when the shackle is locked in the socket, and which are partly but not completely in registry when the lock is unlocked and the shackle is out of the socket, and a sealing member adapted to be inserted substantially Vertically through the slots when the shackle is either looked in the socket or partly pivoted away from said flange which sealing member is narrower in Width than the length of said slots, but wider than the registering portion of the slots when the shackle is in pivoting position and contacting with said flange.

FLORIS H. VAN LEER. 

